I saw in other threads a similar issue where a guy could actually open the corrupt cwp file but only when he had a few other songs open. So I tried it, it still didn't work but it threw up different info including an error with
PCS-CakeSM.dll.
Problem Event Name: BEX64
Application Name: SONARPDR.exe
Application Version: 20.0.4.278
Application Timestamp: 52abb061
Fault Module Name: PCS-CakeSM.dll
Fault Module Version: 1.0.1.323
Fault Module Timestamp: 52deffea
Exception Offset: 000000000018ce5f
Exception Code: c0000409
Exception Data: 0000000000000000
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 2057
Additional Information 1: 8fc7
Additional Information 2: 8fc75380eb5b412e47d0418083243c4b
Additional Information 3: 1d9f
Additional Information 4: 1d9f16a2583c807ab24e6680591990f3